Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
brunnerworks.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 11:20:08 UTC · ↺ Refresh
MX Hostnames
- d239900b.ess.barracudanetworks.com
- d239900a.ess.barracudanetworks.com
MX Priorities
- d239900b.ess.barracudanetworks.com: 20
- d239900a.ess.barracudanetworks.com: 10
A / AAAA Records
- 104.26.9.228 (no PTR)
- 104.26.8.228 (no PTR)
- 172.67.73.74 (no PTR)
- 2606:4700:20::681a:9e4 (no PTR)
- 2606:4700:20::681a:8e4 (no PTR)
- 2606:4700:20::ac43:494a (no PTR)
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ariella.ns.cloudflare.com dns.cloudflare.com 2399578498 10000 2400 604800 1800
Primary NS (mname)
ariella.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399578498
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ariella.ns.cloudflare.com
yadiel.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:38.104.120.138 ip4:168.245.0.0/16 ip4:20.96.112.90 ip6:fe80::dc38:157c:3196:6b4d include:spf.mailjet.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:aspmx.pardot.com include:_spf.salesforce.com include:50498747.spf05.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- apple-domain-verification=odRmAovVvEGzTEgC
- google-site-verification=7d5gNmfx4uhnZWBN6lxbKF6ieWw5pTCp9SxCmvUFDo0
- google-site-verification=WCVDrv_VdGC4ql3Xxm7ClMaIozEBdEdVFcU2jvJcQNw
- i1RUgpEsjoITOmG/M7HXaNlJ6b6MMbhEpxwzKVuXjrs=
- SPFv=spf1 ip4:38.104.120.138 ip4:168.245.0.0/16 ip4:20.96.112.90 ip6:fe80::dc38:157c:3196:6b4d include:spf.mailjet.com include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:aspmx.pardot.com include:_spf.salesforce.com include:50498747.spf05.hubspotemail.net -all
Full email verification for brunnerworks.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits